Re: [Discuss-gnuradio] Losing data during long collects

[Chris Stankevitz]

Eric Blossom wrote:
> If you're running Linux and writing to an ext3 filesystem,  try
> remounting it as an ext2 filesystem.  I've seen problems in the past
> when the ext3 filesytem posts its journal, however they showed up as
> overruns -- the filesystem wasn't keeping up.

Eric,

I used to have this problem when I was using ext3 on a slow hard drive. 
 The problem manifested itself as a buffer overrun.  Today I use ext2, 
have a 4 disk RAID0 that can handle 40MB/s sustained, and I get no overruns.

> Bug in your code?  Are you double buffering or something?  Are you
> properly handling locking between the producer and consumer?

My code is pretty simple, so naturally (of course) I don't think it is 
buggy.  I am double buffering.  I will start recording with cfile and 
see if the problem goes away.  I could also try a lower sampling rate.

Thanks,

Chris